Look for MT10KCGY on a 2019 MT-10. That code identifies the machine within Yamaha part number LIT-11616-31-48, the factory service volume for this generation.
Four model years share the reference, running from 2018 to 2021. Yamaha wrote it that way because the machines are closely related in service terms, and the text distinguishes the individual years where a specification or a procedure changed.
The content is what a dealer technician relies on. Assemblies have a sequence for coming apart and going back together, fasteners have torque figures, clearances and adjustment settings are stated as measurements, the wiring diagrams map the electrical system, and the troubleshooting sections start from a symptom and work back to what should be tested.
Confirm the MT10KCGY code against your own bike before applying a figure from LIT-11616-31-48 to it.
